asyncrat | 6d1374bb816d1e54b4cffae41830837e0c83985156a4b33f5dbce644bdb61de9

Resubmissions

23-09-2023 06:54

230923-hpl7dsdf3x 10

22-09-2023 05:10

230922-ftprzafc57 10

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
22-09-2023 05:10

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General

Target

mta.ps1
Size

743B
MD5

d4567ca45aded54298f9ccf063ed89cf
SHA1

72ef210030f0f470433a6aacc66dfbe4cbfdad5c
SHA256

60416198c9b2105c9204638fd00e154e2f5c32ba45f5a8ae2671bae565c062e9
SHA512

e616e9711a76525a30063b226c1c11131c30199a5cdb6389b6867e8a626d49abfa43c549f83f068fe7dfbe99c62c124ff838e318807ad65e8cd5db318088331e

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

193.161.193.99:31507

Mutex

ajmlxbvgoegjpkevdnz

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral6/memory/4192-19-0x0000021EA5FA0000-0x0000021EA5FB8000-memory.dmp	asyncrat

Blocklisted process makes network request 27 IoCs

Processes:

powershell.exe

flow	pid	process
26	4192	powershell.exe
28	4192	powershell.exe
29	4192	powershell.exe
30	4192	powershell.exe
38	4192	powershell.exe
44	4192	powershell.exe
45	4192	powershell.exe
46	4192	powershell.exe
47	4192	powershell.exe
48	4192	powershell.exe
50	4192	powershell.exe
52	4192	powershell.exe
53	4192	powershell.exe
54	4192	powershell.exe
55	4192	powershell.exe
59	4192	powershell.exe
62	4192	powershell.exe
63	4192	powershell.exe
64	4192	powershell.exe
65	4192	powershell.exe
66	4192	powershell.exe
67	4192	powershell.exe
68	4192	powershell.exe
69	4192	powershell.exe
70	4192	powershell.exe
71	4192	powershell.exe
72	4192	powershell.exe

Downloads MZ/PE file

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

powershell.exe

pid	process
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe
4192	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4192 powershell.exe
Token: SeDebugPrivilege 4192 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

powershell.exe

pid process

4192 powershell.exe

description	pid	process
Token: SeDebugPrivilege	4192	powershell.exe
Token: SeDebugPrivilege	4192	powershell.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\mta.ps1
1⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4192

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g5i0mt5s.urf.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4192-16-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-17-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-11-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-12-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-13-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-14-0x00007FF81F860000-0x00007FF820321000-memory.dmp

Filesize
10.8MB

Download
memory/4192-10-0x00007FF81F860000-0x00007FF820321000-memory.dmp

Filesize
10.8MB

Download
memory/4192-7-0x0000021EA5990000-0x0000021EA59B2000-memory.dmp

Filesize
136KB

Download
memory/4192-15-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-18-0x0000021EA5E90000-0x0000021EA5EE0000-memory.dmp

Filesize
320KB

Download
memory/4192-19-0x0000021EA5FA0000-0x0000021EA5FB8000-memory.dmp

Filesize
96KB

Download
memory/4192-20-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-21-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-23-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download
memory/4192-24-0x0000021E8B270000-0x0000021E8B280000-memory.dmp

Filesize
64KB

Download